They Have Changed the controls Greyfuss. You can now go forward with the mouse. When you click ahead it appears to be manholes that form until Kate gets there.
So is it actually point-and-click and not click-and-hold until Kate gets there?
What are the "manholes" supposed to indicate?
Are you supposed to interact with them?
Do they indicate where to click to have Kate take that path?
I guess it's hard to describe. If anyone finds a YouTube video showing the "manholes" let us know.